Flexible pane and screen sash



Oct. 9, 1951 c. J. Roos 2,570,597

FLEXIBLE PANE AND SCREEN SAM f Filed March 24, 1948 f a Jr 3 ,/4/

INVENTOR ATTORNEYS Patented Oct. 9, 1951 UNITED STATES PATENT OFFICE FLEXIBLE PANE AND SCREEN SASH Charles J. Roos, Muskegon, Mich.

Application March 24, 1948, Serial No. 16,816

1 Claim.

This invention relates to a flexible pane or screen sash construction, the primary object of the invention being to provide a sash wherein a flexible pane or screen, preferably of plastic material, may be readily and easily removed or replaced when it becomes necessary to treat the pane or screen.

Another important object of the invention is to provide a flexible pane or screen sash having means whereby the flexible pane or s-creen may be stretched to draw the pane or screen taut and hold the pane or screen in its taut condition.

With the foregoing and other objects in view which will` appear as the description proceeds, the invention consists of certain novel details of construction and combinations of parts, hereinafter more fully described and pointed out in the claim, it being understood that changes may be made in the construction and arrangement of parts without departing from the spirit of th inventionras claimed.

Referring to the drawing Figure lis a longitudinal sectional view through a portion of a screen or flexible pane sash, illustrating the stretching frame in its inactive position prior to the stretching operation.

Fig. 2 is a fragmental sectional view through the sash and pane, illustrating a stretching bar as moved to its stretching position.

Fig. 3 is a fragmental sectional view through f inner edge of the section 6, the inner edge of the section 5 being formed with a continuous beveled surface 8. The sections 5 and 6 are constructed to clamp the flexible pane as shown by Figs. 1 and 2 of the drawing, therebetween, while in Fig. 3 of the drawing, a screen indicated by the reference character 9 which may also be constructed of plastic material, is held between the sections 5 and 6.

Bolts indicated at I0 extend through the sections 5 and 6 and draw the sections 5 and 6 towards each other in clamping relation with thepane or screen to be supported by the sash.

' section 5, is the stretching frame Il, which is rectangular in formation and comprises unconnected bars that are provided with beveled edges that move over the beveled surfaces 8 of the bars of the stretching frame ll resting directly on the pane which is constructed preferably of plastic material, and indicated in Figs. 1 and 2 of the drawing by the reference character A.

The rectangular stretching frame is provided with enlarged openings I2 which openings are so arranged that when the stretching frame is positioned within the section 5, the openings l2 will register with openings I3 formed in the rectangular section 5 to accommodate the securing screws I4.

It might be further stated that the lower edge of the rectangular stretching frame l Il is rounded as at I5, presenting a curved surface for conta-ct with the pane or screen being stretched to insure against the stretching frame damaging the pane or screen to be mounted.

In Fig. 3 of the drawing@ have shown a semirigid backing strip i6 on which the screen 9 rests, to brace the screen and prevent damage to the screen during the stretching operation.

From the foregoing it'will be obvious that when a flexible pane or screen is to be positioned inf the sash, the edges of the pane or screen are disposed between the sections 5 and 6, the bolts I0 passing through openings in the pane or screen.

As the strips of the frame il are drawn into engagement with the beveled edges of the section 5, it is obvious that the strips of the stretching frame will be moved into close engagement with the pane or screen being stretched, causing the pane or screen to bend as shown by the drawing, causing the pane or screen to become taut.

The openings of the strips of the stretching frame, being appreciably larger than the adjusting screws, the strips may move in a manner as described to accomplish the purpose of the invention.

What is claimed is:

A screen embodying a screen frame comprising a pair of outer and inner frame sections secured together, between which wire mesh material is clamped, the inner edge of the outer section of the frame being beveled, said beveled inner edge extending a substantial distance beyond the inner 2,570,597 Y v 3 4 edge of the inner screen frame section, a stretcher REFERENCES CITED frame embodying independently movable sections The following references are of record in the having beveled surfaces resting against the me of this patent: beveled inner edge of the outer frame section, said stretcher frame also resting against the wire 5 UNITED STATES PATENTS mesh material beyond the inner edge of the inner Number Name Date screen frame section, and means for moving the 147,494 Fuller Feb. 1'7, 1874 Sections of the stretcher frame over the beveled 1,753,366 Lisle Apr. 8, 1930 surfaceofthe outer section of thescreen frame, 1,897,418 Carlson -l Feb. 14, 1933 and against the `:wire mesh material stretching l0 said wire mesh material within the frame.

CHARLES J. ROOS. 

